See ANSYS help for details of the following (version 8 details below).
Chpater 3.4.1. Starting a Batch Job from the Command Line
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Starting Batch Mode from the Windows Command Line
You can also start a batch job in Windows by issuing the ANSYS execution command directly from the MS-DOS command prompt window. The format for the command depends on whether you want ANSYS to run in the foreground or the background:
Foreground execution:
"<drive>:\Program Files\Ansys Inc\V80\ANSYS\bin\<platform>\ansys80" -b -i inputname -o outputname
To run multiple consecutive jobs on Windows systems, create and run a batch file containing commands similar to the example below:
set ANSYS80_PRODUCT=ANE3FL
set ANS_CONSEC=YES
"C:\Program Files\Ansys Inc\V80\ANSYS\bin\intel
\ansys80" -b -i vm1.dat -o vm1.out
"C:\Program Files\Ansys Inc\V80\ANSYS\bin\intel
\ansys80" -b -i vm2.dat -o vm2.out
"C:\Program Files\Ansys Inc\V80\ANSYS\bin\intel
\ansys80" -b -i vm3.dat -o vm3.out
Setting ANS_CONSEC=YES disables ANSYS dialog boxes so that multiple jobs can run consecutively without waiting for user input.
Note: The example above assumes that the ANSYS product that you are running is ANSYS Multiphysics, which has a product variable of ane3fl.
Hope the above helps,
-- drej --